Dishwashing tool or appliance



March 9, 1954 w. N. SCHNELL DIsHwAsHING Toor. on APPLIANCE Filed Marchl1, 1953 JNVENmx WILL/AM N. SCHNELL sy I Mm/KM,

a A. All

AOENEQGXQ: Y ,d

Patented Mar. 9, 1954 UNITED STATES PATENT GFFICE DISHWASHING TOOL RAPPLIANCE William N. Schnell, Fort Lauderdale, Fla. Application March11, 1953, Serial No. 341,697

6 Claims. l

This invention relates to dishwashing tools or appliances. It is theobject of the invention to provide a simple tool which can be connectedwith the kitchen faucet or water outlet by means of a rubber hose. Thistool contains a soap or detergent reservoir which may be completelyfilled with the liquid or other form of detergent. It is provided with arather large mixing chamber in which the detergent is automaticallymixed with water. Pressure is applied at all times to the contents ofthe detergent and mixing chamber. Suitable hand operated valves areprovided to control the passage of the Water through the main conduit tothe fountain brush and also to control the dispensing of the detergentsolution into the water stream.

Most of the dishwashing tools `of this kind that have heretoforeappeared on the market require the recharging of the detergent everyother day or even oftener. One reason for this is that the detergent ismixed with Water in a single reservoir and this is done each time by theoperator. In my tool I have a separate chamber for the detergent and aseparate mixing chamber where the mixing is automatically done by thetool itself. The detergent reservoir has and can have no water in it andconsequently may be completely filled with detergent. This chamber willhold enough detergent for daily use of the appliance for one to threeWeeks.

'I'he rubber hose can be hooked up with the usual single faucet. Some ofthe new kitchen faucets are equipped with a spray attachment which isconnected to the faucet below the sink level. My appliance could be usedin connection with this spray attachment as a replacement for the sprayhead provided in this type faucet.

Referring to the drawings:

Fig. l is a longitudinal section of the tool or appliance.

Fig. 2 is a cross sectionon the line 2-2 of Fig. 1.

Fig. 3 is a perspective of the appliance.

The appliance has a narrow outer elongated shell or cylinder I which isof a sufficiently small diameter to be easily grasped in the hand. Forinstance the diameter may be 1%" and the length of the toolapproximately 6". These dimensions are given simply by way of exampleand not by way of limitation. Preferably this cylinder is plastic, butit may be metal. 'I'he ends of the outer cylinder I are externallythreaded to receive the caps 2 and 3. In the space enclosed by thecylinder I and the caps 2 and 3 is located a pair of metal cylinders IIIand 5.` These are separated at their meeting ends by means of a cup-likepartition 6. 'I'hese cylinders or shells are welded together at theirmeeting edges over the ange of the partition. The cylinder 4 encloses achamber 1 which is a detergent reservoir. The cylinder 5 encloses achamber which is a water and detergent mixing chamber. Theend of shell 4is rounded over and is engaged by the threaded cap which with thethreaded narrowed end 8 supports and centers the inner shell at the rearend of the tool.

A rubber sleeve or sack I engages over the tube 9 which has perforationsI0. 'Ihe end of the tube is screw threaded at I2 over which fits a capnut I3 which is threaded over a sleeve I4 welded on the end of shell 4.'Ihis has internal threads to take the jam nut I 5 which serves to jamthe rubber sleeve or sack with an enclosed ring |'Ia up against theturned over end of the cylinder 4 so as to make a watertight seal here.The inner end of the rubber sleeve or sack fits over a ring II which hasa hump which expands the end of Vthe rubber sleeve. 'Ihe ring ts overthe end of tube 9 and a second tube I8 which has a small perforation I9to admit liquid to the mixing chamber 8.

Tube I8 fits into a ring 53 with a cylinder segment or valve cradle 52which is welded to the end wall of cylinder 5.A The tube 24 is securedin the cupped end plate 50 which is caught between the threaded cap 3and the threaded reduced end 5| of the outer shell l. Another ring has acylinder segment cradle 54. Push valve 2| is shown in Fig. 2. It isguided by pin 55 in slot 56 of the valve. Pin 55 screws in the shorttube 51. Valve 2| has a pair of openings 22 which can be pushed in linewith the end of the conduit I8 by pushing the valve from the left handside to the dotted line position shown in the right hand side of Fig. 2.In this dotted line position water can flow through tubes 9 and I8through the valve 2| and into the throat 23 of tube or nozzle 2,4. Thereis a venturi 25 on the inside of the nozzle adjacent an opening 26 inplug or valve container 28. This plug 28 is connected by a capillarytube 29 with the end of mixing chamber 5. A small orifice leads from thecapillary tube to the small chamber 30 in the plug. 'I'his chamber formsa connection between the end of the small orifice 3| and the smalloriice 26 perpendicular thereto. A push button valve 32 in the form ofa. spring pressed thimble has a small orifice 33 which can be broughtinto registry with the small orice 3| when the push button is pushed in.There is a check valve lcasing 34 secured to the partition 6. In this islocated a check valve 35 ordinarily covering up the opening 36 from thecheck valve casing to the reservoir interior l. A capillary orice 3lleads from the other end of the check valve casing.

Intheshelliislocatedametalthimbleil which is welded to the metal shell4. This has ascrewthreaded cap ll whichcanbescrewed into the interiorthreads of the thimble to cover up an opening 4l into the reservoir l.Liquid detergent can be poured into the reservoir. This reservoir willtake enough for one to three weeks of dishwashing in an averagehousehold.

'Ihe operation of this appliance is as follows: Water comes into the twoconduits 9 and Il. If the push valve llis in the position shown in thefull lines of Fig. 2, there will be no ow out through the nozzle 24. Butwater will flow out the capillary orince I9 in conduit It and nil themixing chamber t. At the same time the liquid detergent will be forcedunder pressure out of the chamber 'I through the capillary oriilces 34and 31 into the mixing chamber 8. The check valve Ii insures that nowater will flow from the mixing chamber back into' the detergentreservoir. The orifices I9 and I0 are so calculated that the correctproportion of detergent and water will always obtain in the mixingchamber. As some of the mixture is withdrawn to be put into the waterstream, more detergent and water will enter the mixing chamber to takeits place automatically by reason of the pressure ail'orded by therubber sack and the water pressure inside the sack.

After the valve 2l has been pushed to the right in Fig. 2 to open it, itwill stay in this position due to the friction afforded by the rubberring 4I. When in this open position the push button 32 is pressed down,and as long as it is held down a small amount of soap and water will befed through the small orifices 29, 33, chamber 40, and orifice 2i intothe venturi of the nozzle 24. 'I'his feeding will take place not only bypressure applied to the contents of the detergent reservoir and themixing chamber, but also there will be a suction'action due to theventuri 35 operating on the adjoining orifice 29. As long as the pushbutton is held in the detergent water will ilow into the water stream.

The nozzle 24 is arranged to have a fountain brush 42 having a stem 43which slips over the end of the nozzle 24 as shown in Fig. 3 and theknurled stem 58 may screw into threads of the cupped end member 54.

'Ihe important thing in this appliance is the separate detergentreservoir and the separate mixing chamber contained in the tool itself,and the detergent and the contents of the mixing chamber subjected tothe pressure in the water line by means of the rubber sack and thePerforations in the water tubing and the valves to control the waterstream in the tubing and the detergent flow from the mixing chamber intothe water nozzle and the brush. Now, the chambersand valves andthe toolare made up of quite a large number of separate parts in the form ofcylinders, shells, tubing, valve casings and so forth. If one undertookto claim all the parts that go to make up the structure the claims wouldbe unduly prolix and more or less superfluous. So it is proposed toclaim all this structure that goes to make up the housings of the toolas shell structure and this is to include in its significance thevarious shells, partitions, caps, and so forth that go to make up theseveral chambers and which support the tubing and the valves.

What I claim is:

1. A dish washing appliance or tool comprising an elongated shellstructure aifording a separate detergent reservoir with a filler openingand 4 cover therefor. and a separate mixing chamber with a smallpassageway connecting the rescvoir to deliver into the mixing chamber,tubing supportedbytheshellstructureandpassing through the reservoir andthrough the mixing chamber, said tubing provided with perforations inthe portion of the tubing passing through the detergent reservoirchamber and the portion passing through the mixing chamber, the tubinghaving included in its line a water control valve, small tubing and avalve containing member supported by the shell structure affording asmall diameter passageway leading from the mixing chamber to the tubingon the deliverv side of the water valve, a hand operated valve forcontrolling the flow through this detergent and water mixture line, anda rubber sleeve or sack wrapped around that portion of the perforatedtubing contained in the detergent reservoir to apply water pressure tothe contents of the chamber without leakage of water into the chamber.

2. The combination claimed in claim 1 with a check valve in thepassageway from the detergent reservoir to the mixing chamber.

3. The combination claimed in claim 1 with the tubing on the deliveryside of the water contube to the nozzle and a spring pressed push buttonvalve in the form of a thimble having a perforation which can be broughtinto registry with the capillary passageway in the plug, which capillarypassageway through the plug is normally closed by the thimble like valvecrossing the passageway.

5. The combination claimed in claim 1 in which .the water valve issupported by xtures on the end of the tubing passing through the mixingchamber and on the rear end of the tubing forming the nozzle, the saidfixtures aifording cylindrical segments constituting cradles to supporta slide valve, the said slide valve being supported on these cradles andalso by the shell structure. the said valve having a portion of itsinterior hollow with perforations in the side of the cylindrical valvewhich can be brought into registry with the ends of the tubing at thecradles.

6. The combination claimed in claim 5 in which the cylindrical valve isprovided with a slot and a guide pin is supported in the side of theshell structure and engages in the slot in the cylindrical valve to keepthe valve from rotating so as to make sure the perforations in the valvecan be brought into registry with the ends of the tubing.

WILLIAM N. SCHNELL.

References Cited in the ille of this patent UNITED STATES PATENTS NumberName Date 1,532,809 Girard Apr. 7, 1925 2,069,833 Horner Feb. 9, 19372,540,064 Weber Jan. 30, 1951 2,545,110 Schaar Mar. 13, 1951 2,618,660Morehouse Nov. 4, 1952 2,841,507 McGregor June 9, 1953

